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US4248728A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid scouring cleanser

Assignee: Diversey Corp Canada
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Filing: 1979-02-28
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Granted: 1981-02-03
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Expires: 1999-02-28
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Abstract

Abstract A paste type scouring cleanser containing colloidal magnesium aluminum silicate, alkali, optionally a bleach, zeolite, optionally an abrasive, a surfactant, and optionally sodium hexametaphosphate, all in aqueous dispersion.

Inventors

  • 👤 Robert L. Puryear

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 20:13
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0008; C11D17/0013; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/1286

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 213 words
A general purpose scouring cleanser in cream form consisting of: ______________________________________ Wt. % ______________________________________ Water, to make balance of 100% Colloidal magnesium aluminum silicate, about 1-5 Alkali, about 1-5 Sodium aluminum silicate, about 10-50 Abrasive, about 0-25 Chlorine-stable anionic surfactant, about 0.5-2.0 Bleach (dry basis), about 0-2 Sodium hexametaphosphate, about 0-15 ______________________________________ said colloidal magnesium aluminum silicate being a member selected from the group consisting of: hectorites, modified hectorites, smectites, montmorillonite, bentonite, volchonskoite, nontronite, beidellite, saponite, or sauconite; said alkali being sufficient to maintain the pH in the range of 11-14; said sodium aluminum silicate being a water insoluble crystallizing aluminosilicate ion exchange material of the formulas Na 12 [AlO 2 SiO 2 ] 12 xH 2 O wherein x is an integer of from about 20 to about 30; said abrasive being a member selected from the group consisting of quartz, pumice, pumicite, titanium dioxide, silica sand, calcium carbonate, zirconium silicate, diatomaceous earth, whiting, or feldspar, and having a particle size diameter ranging from about 1 to about 250 microns and a specific gravity of from about 0.5 to about 5.0; said bleach being a member selected from the group consisting of; sodium hypochlorite, potassium hypochlorite, monobasic calcium hypochlorite, dibasic magnesium hypochlorite, chlorinated trisodium phosphate dodecahydrate, potassium dichloroisocyanurate, sodium dichloroisocyanurate, or N-chlorosulfamide.
Claim 2
Dependent Claim 213 words
A general purpose scouring cleanser in cream form consisting of: ______________________________________ Wt. % ______________________________________ Water, to make balance of 100% Colloidal magnesium aluminum silicate, about 1-5 Alkali, about 1-5 Sodium aluminum silicate, about 10-50 Abrasive, about 0-25 Chlorine-stable anionic surfactant, about 0.5-2.0 Bleach (dry basis), about 0-2 Sodium hexametaphosphate, about 0-15 ______________________________________ said colloidal magnesium aluminum silicate being a member selected from the group consisting of: hectorites, modified hectorites, smectites, montmorillonite, bentonite, volchonskoite, nontronite, beidellite, saponite, or sauconite; said alkali being sufficient to maintain the pH in the range of 11-14; said sodium aluminum silicate being a water insoluble crystallizing aluminosilicate ion exchange material of the formulas Na 12 [AlO 2 SiO 2 ] 12 xH 2 O wherein x is an integer of from about 20 to about 30; said abrasive being a member selected from the group consisting of quartz, pumice, pumicite, titanium dioxide, silica sand, calcium carbonate, zirconium silicate, diatomaceous earth, whiting, or feldspar, and having a particle size diameter ranging from about 1 to about 250 microns and a specific gravity of from about 0.5 to about 5.0; said bleach being a member selected from the group consisting of; sodium hypochlorite, potassium hypochlorite, monobasic calcium hypochlorite, dibasic magnesium hypochlorite, chlorinated trisodium phosphate dodecahydrate, potassium dichloroisocyanurate, sodium dichloroisocyanurate, or N-chlorosulfamide.
Claim 3
Dependent Claim 53 words
Cleanser according to claim 1 consisting of ______________________________________ Wt. % ______________________________________ Water, about 40-65 Colloidal magnesium aluminum silicate, about 1-5 Sodium metasilicate anhydrous, about 1-5 Zeolite 4A, about 10-50 Calcium carbonate, about 0-25 Sodium lauryl ether sulfate, about 0.5-2.0 Sodium hypochlorite, 5.25 wt. % aqueous solution, about 0-40 Sodium hexametaphosphate, about 0-15 ______________________________________
Claim 4
Dependent Claim 44 words
Cleanser according to claim 1 consisting of: ______________________________________ Wt. % ______________________________________ Water, to make balance of 100% Colloidal magnesium aluminum silicate, about 3.5 Alkali, about 1.5 Sodium aluminum silicate, about 10.0 Abrasive, about 20.5 Anionic surfactant, about 1.0 Bleach (dry basis), about 1.0 ______________________________________
Claim 5
Dependent Claim 49 words
Cleanser according to claim 3 consisting of: ______________________________________ Wt. % ______________________________________ Water about 43.5 Colloidal magnesium aluminum silicate, about 3.5 Sodium metasilicate, anhydrous, about 1.5 Zeolite 4A, about 10.0 Calcium carbonate, about 20.5 Sodium lauryl ether sulfate, about 1.0 Sodium hypochlorite (5.25 wt. % aqueous solution), about 20.0 ______________________________________
Claim 6
Dependent Claim 37 words
Bleach-free cleanser according to claim 2 consisting of: ______________________________________ Wt. % ______________________________________ Water, about 63.5 Colloidal magnesium aluminum silicate, about 3.5 Alkali, about 1.5 Sodium aluminum silicate, about 10.0 Abrasive, about 20.5 Anionic surfactant, about 1.0 ______________________________________
Claim 7
Dependent Claim 35 words
Cleanser according to claim 5 in which the alkali is anhydrous sodium metasilicate; the sodium aluminum silicate is zeolite 4A; the abrasive is finely divided calcium carbonate; and the surfactant is sodium lauryl ether sulfate.

References Cited (Backward Citations)

US4005027A Cited
DE2439572A1 Cited
US3962132A Cited
US3985668A Cited
US3929678A Cited
US4051056A Cited
US4051055A Cited
US4116851A Cited
US4094778A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-02-03 1984-08-04 1985-02-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-02-03 1988-08-04 1989-02-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-02-03 1992-08-04 1993-02-03 $7700.00 Window Closed / Lapsed

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